ASoC: add xtensa xtfpga I2S interface and platform

XTFPGA boards provides an audio subsystem that consists of TI CDCE706
clock synthesizer, I2S transmitter and TLV320AIC23 audio codec.

I2S transmitter has MMIO-based interface that resembles that of the
OpenCores I2S transmitter. I2S transmitter is always a master on I2S
bus. There's no specialized audio DMA, sample data are transferred to
I2S transmitter FIFO by CPU through memory-mapped queue interface.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Max Filippov
2014-12-26 20:19:38 +03:00
committed by Mark Brown
parent 97bf6af1f9
commit 57b7068de5
7 changed files with 706 additions and 0 deletions
+1
View File
@@ -36,3 +36,4 @@ obj-$(CONFIG_SND_SOC) += spear/
obj-$(CONFIG_SND_SOC) += tegra/
obj-$(CONFIG_SND_SOC) += txx9/
obj-$(CONFIG_SND_SOC) += ux500/
obj-$(CONFIG_SND_SOC) += xtensa/